CBSE 2025 · Region 4 · Set 3 · Q9 · 1 mark
The most widely used transgenic animal for testing the safety of vaccine before they are used in humans is :
Official answer
From CBSE’s own marking scheme for this paper.
(D)
Mice
Biotechnology and its ApplicationsTransgenic AnimalsRemembermcqmedium
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CBSE Class 12 Biology past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.